Q390C pā kila

ʻO nā mea kila Q390C e like me ka pā kila Q390C, ka pahu pōʻai Q390C, ka pahu kihi kila Q390C, Q390C square a me nā ʻāpana hollow rectangular aia i loko o ka hale kūʻai o Xinsteel. Ua kapa ʻia ʻo CEV ʻo CEQ no Q390C me ka mānoanoa like a ma lalo o 30mm ka 0.45% ka lōʻihi. CEV=CEQ=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.